Hydraulic double-roll crusher
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Hydraulic double-roll crusher is a kind of double-roll crusher. It is named because its main crushing part is composed of two rollers. The roller crusher is simple in structure and can be used for medium and fine crushing of medium-hard and soft ores. The roller crusher has many advantages such as finer crushing particles, larger capacity, simple operation, long service life, adjustable discharge particle sizes, and wide applications. 
The hydraulic double-roll crusher is suitable for the medium and fine crushing of solid materials with a compressive strength lower than 300Mpa and a moisture content less than 35%, such as iron ore, quartz stone, potassium (sodium) feldspar, limestone, river pebble, and metal Silicon, barite, basalt, granite, steel slag, cement clinker, construction waste (concrete), shale, quicklime, coal, coke, clay, bentonite, chemical raw materials, etc. It can be widely used in mining, thermal power, cement ceramics, metallurgy, chemical industry, building materials and other industries. It has many advantages such as low operating cost, low moisture requirement, reliable performance, low power consumption, low dust and low noise.

• Compact structure • Efficient and energy-saving
• Large crushing ratio • Good crushing effect
• Upgraded system • Automatic hydraulic system
• Thickened roller skin • Long service life
• Hydraulic-spring integration, balanced flashback protection
• The discharging granule is full, the gradation is reasonable, and the powder content in the finished product is low.
• The hydraulic roller crusher has a low loss rate of wear parts, and the roller sleeve is made of manganese-chromium alloy steel with a long average service life.

Working principle and structure
1. This series of roller crushers are mainly composed of rollers, roller supporting bearings, pressing and adjusting devices, driving devices and so on.
2. Adjustment of the discharging granularity: a wedge or gasket adjustment device is installed between the two rollers, and an adjustment bolt is installed on the top of the wedge device. When the adjustment bolt pulls the wedge up, the wedge pushes the movable roller away from the fixed wheel, which means the gap between the two rollers becomes larger, and the discharging granularity becomes larger. When the wedge is downward, the gap between the two wheels of the movable roller becomes smaller under the action of the compression spring, and the discharging granularity becomes smaller. The gasket device adjusts the discharging particle size by increasing or decreasing the number or thickness of the gasket. When the gasket is increased, the gap between the two rollers becomes larger, and when the gasket is reduced, the gap between the two rollers becomes smaller and the discharge particle size becomes smaller.
3. The driving mechanism is composed of two motors, which are driven by a V-belt to the pulley to drag the roller, and rotate in relative direction. When crushing material, the material passes through the roller from the feed port, being crushed through rolling, and then crushed product is discharged from the bottom of the chassis.
Roller diameter
Roller width 
Adjustable range of
discharge opening
Protection method
Transmission method
2PGT400x250 φ400 250 ≤25 2-10 2x5.5 0-8 Spring-protected 
Double-roll crusher
V-belt driving
2PGT600x400 φ600 400 ≤25 5-20 2x15 0-8
2PGT700x400 φ700 400 ≤30 10-30 2x18.5 0-10
2PGT800x500 φ800 500 ≤40 20-40 2x30 0-10
2PGT1000x800 φ1000 800 ≤40 45-80 2x45 10-150 Hydraulic
Double-roll crusher
Coupling driving
2PGT1200x1000 φ1000 1200 ≤400 50-120 2x75 20-150
 2PGT1200x1200 φ1200 1200 ≤400 80-150 2x90 20-200
2PGT1500x1000 φ1500 1000 ≤500 120-180 2x110 20-200
2PGT1800x1000 φ1800 1000 ≤500 150-230 2x160 30-300
2PGT2000x1000 φ2000 1000 ≤700 320-350 2x200 30-300
NOTE: The specifications above are for reference only; for more configurations, please consult our sales staff.
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